Northrop Grumman Aeronautics Systems sector is hiring a Mass Properties Sr Principal Engineer to join our Vehicle Engineering team in Melbourne, Florida.
This position performs mass properties functional analysis, timeline analysis, detail trade studies, and mass properties requirements allocation studies to translate customer, product or derived mass properties requirements into hardware and software specification requirements. Analyzes, researches and tests system hardware and conditions for optimal mass properties system solutions. Tools utilized may include solid modeling tools, database tools and standard office applications.
This individual will contribute to the Mass Properties team supporting the achievement of program requirements. Specific responsibilities may include, but are not limited to:
Supporting the implementation of a Mass Properties Management and Control Program.
Accurate estimating and optimizing mass properties to achieve vehicle performance and fulfill weight-based program metrics.
Establishing specifications and design target weights.
Support the maintenance of the Mass Properties accounting and reporting systems to inform the customer and management of current and projected mass properties trends.
Providing mass properties data for cost analyses and vehicle design and analysis.
Evaluating subcontractor proposals, interacting with and overseeing subcontractor mass properties management and control.
Reviewing drawings to achieve mass properties management and control.
Measuring/weighing vehicle and/or components to increase vehicle weight estimate accuracy.
Providing mass properties data in support of operational flight manual.
You may be required to attend or present at internal program, customer and/or supplier technical exchange meetings and/or formal program milestone reviews to provide and/or obtain progress status updates.
Thrive in a fast-paced work environment with high expectations, significantly diverse assignments, and collaborative/team settings across all levels. Candidates must be self-starters capable of flourishing in an environment with minimal direction.
Basic Qualifications:
Must possess a Bachelor of Science degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline and 8 years of relevant engineering experience; OR Master of Science degree in a STEM discipline and 6 years of relevant experience
Must have an active In-Scope DoD Secret clearance.
Must have the ability to obtain and maintain Active In-Scope DoD Top Secret clearance.
Must have experience with mass property and weight and balance analysis.
Must be familiar with Society of Allied Weight Engineers RP 7 & 8
Preferred Qualifications:
Aircraft Weight and Balance Certification
Automated Weight and Balance System (AWBS) experience
Experience in vehicle design and manufacturing techniques
Siemens NX or CATIA proficiency
Familiarity with electrical harness weight estimation and calculation
Familiarity with a Common Product Lifecycle Management system such as SmarTeam or Teamcenter
Be able to be the lead mass properties engineer on a given program
Inertia calculations and materials properties experience
Create Estimated, Calculated, Actual and Status reports
Be a lead mass properties engineer on a flight test team
Skills Required
- Bachelor of Science in a STEM discipline and 8 years relevant engineering experience OR Master of Science in a STEM discipline and 6 years relevant experience
- Active In-Scope DoD Secret clearance
- Ability to obtain and maintain Active In-Scope DoD Top Secret clearance
- Experience with mass properties and weight and balance analysis
- Familiarity with Society of Allied Weight Engineers RP 7 & 8
- Aircraft Weight and Balance Certification
- Automated Weight and Balance System (AWBS) experience
- Experience in vehicle design and manufacturing techniques
- Siemens NX or CATIA proficiency
- Familiarity with electrical harness weight estimation and calculation
- Familiarity with SmarTeam or Teamcenter (Common PLM systems)
- Inertia calculations and materials properties experience
- Ability to create Estimated, Calculated, Actual and Status mass reports
- Experience serving as lead mass properties engineer on a program or flight test team
Northrop Grumman Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.
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Retirement Support — 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
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Leave & Time Off Breadth — PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
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Parental & Family Support — Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.
Northrop Grumman Insights
What We Do
We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.









